Straight-edge.



A. J. PERKS.

STRAIGHT EDGE. APPLICATION FILED MAR. 23, 1907.

Patent-ed m '1, 1908.

attounu,

' of wood and is very liable to warp or twist invrrs sin ALBERT J. PERKS, OF SPRINGFIELD, OHIO, ASSIGN OR TO WEBSTER AND PERK S TOOL 00M- PANY, OF SPRINGFIELD, OHIO, A GOPARTNERSHIP.

STRAIGHTEDGE Specification of Letters Patent.

Patented Dec. 1, 1908.

Application filed March 23, 1907. Serial No. 364,056.

To all whom it may concern:

Be it known that I, ALBERT J. PERKs, a citizen of the United ,States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new'and use ful Improvements in' Straight-Edges, of

I which the following is a specification, refer ence being had therein to the accompanying drawings.

The present invention relates to straightedges of the character employed by paperhangers.

I The object of the invention is to provide such a straight-edge with reinforcing means adapted to prevent the same from warping or twisting, and further, to provide the straight-edge with sufiicient weight to cause the same to rest firmly upon the paper and preventits slipping or creeping thereon.

With these objects in view my invention consists of certain novel features of construction to be hereinafter described, and then more fully pointed out in the claim.

In the accompanying drawings, Figure 1 is a perspective view of a section of a straight-edge embodying my invention; and Fig. 2 is atransverse, sectional view of the same.

, In these drawings, I have illustrated my invention as embodied in an ordinary straight-edge of the typeusually employed by paperhangers and comprising a body portion 1, provided on one edge with a metal binding stripQ and on its other edge with a guide strip 3 having its upper portion turned at right angles thereto. as shown at 4, and extending over a portion of the groove 5, thus forming a guide or track upon which the trimmer travels. The body portion of such a straight-edge usually made and become worthless. To overcome this tendency I provide the straight-edge with a strip of metal 6 which is preferably secured to the upper face of the straight-edge in any suitable manner, strip may be of as by the screws 7. This sufficient strength to hold and of suflicient weight to cause the straightedge to lie firmly upon the paper and reduce 5 the liability of the same to slip or creep g thereon.- But, if desired, a second strip 8 i may be mounted in a groove or recess 9,

formed in the bottom of the body portion P and extending preferably for the full length thereof. This strip may be secured within 5 the groove 9 in any suitable manner, as by f the screws 10. This second strip adds both E to the strength of the straight-edge to resist i the tendency to warp and to the weight thereof to further prevent creeping. Thus,

it will be seen that straight-edge, the wooden body portion of i which is provided with one or more metal reinforcing strips extending for substantially the full length of the straight-edge and rendering the same rigid vent warping, and further, so increasingthe weight of the straight'edge as to cause the same to firmly engage the paper and prevent the same from slipping thereon.

I wish it to be understood that I do not the exact details of described, for oboccur to a person l in and carried by the wooden portion, independent of said strips, to guide the cutter. In testimony whereo in presence of two witnesses.

ALBERT J; PERKS. Witnesses:

FRA vcIs M. HAGAN, Jr., i EDWARD L. REED.

! the wooden body portion against warping I have provided a.

, I aflix my signature so as to preweighted and reinforced, and means formed 

